US7345262B2ExpiredUtilityA1

Microwave interactive display package

Assignee: GRAPHIC PACKAGING INT INCPriority: Nov 7, 2005Filed: Nov 7, 2005Granted: Mar 18, 2008
Est. expiryNov 7, 2025(expired)· nominal 20-yr term from priority
Inventors:Dan Keefe
B65D 77/0433B65D 5/4204B65D 81/3453B65D 2581/3498
77
PatentIndex Score
9
Cited by
44
References
8
Claims

Abstract

Various microwave energy interactive display packages, blanks for forming such packages, and methods of displaying and heating a food item are provided.

Claims

exact text as granted — not AI-modified
1. A package comprising a plurality of adjoined panels defining a cavity for receiving a food item, the food item including at least one surface intended to be browned and/or crisped in a microwave oven, wherein
 the plurality of adjoined panels includes
 a first panel including a transparent viewing window, and 
 a second panel opposed to the first panel, 
 
 the package includes a microwave energy interactive material overlying at least a portion of the second panel, the microwave energy interactive material being capable of converting microwave energy to thermal energy, 
 in a first configuration, the transparent viewing window displays at least a portion of the surface of the food item intended to be browned and/or crisped, and 
 in a second configuration inverted from the first configuration, the microwave energy interactive material is adjacent to at least a portion of the surface of the food item intended to be browned and/or crisped. 
 
     
     
       2. The package of  claim 1 , wherein the transparent viewing window comprises an aperture circumscribed by the first panel. 
     
     
       3. The package of  claim 1 , wherein a substantially transparent polymer film overlies the transparent viewing window. 
     
     
       4. The package of  claim 1 , wherein
 the transparent viewing window is a first transparent viewing window, and 
 the first panel includes a second transparent viewing window. 
 
     
     
       5. The package of  claim 1 , wherein
 the plurality of panels further includes a first side panel and a second side panel in an opposed relation, 
 at least a first slit extends continuously through the first panel and the first side panel, and 
 at least a second slit extends continuously though the first panel and the second side panel. 
 
     
     
       6. The package of  claim 5 , wherein the first slit and the second slit each define a locking feature for securing a tray within the cavity. 
     
     
       7. The package of  claim 1 , in combination with a tray dimensioned to be received within the cavity. 
     
     
       8. A method of using the package of  claim 1 , comprising:
 inserting the food item into the package such that the surface to be browned and/or crisped can be seen through the transparent viewing window; 
 removing the food item from the package prior to heating the food item in a microwave oven; 
 inverting the package; 
 inserting the food item into the package such that the surface to be browned and/or crisped is positioned adjacent to the microwave energy interactive material; and 
 exposing the food item to microwave energy m a microwave oven.

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